---Peter, where did you guys go for the summer vacation?---We _______ busy with our work for months, so we went to the beach.
#99359
A
were
B
had been
C
have been
D
will be
推荐题目
I ________ ping-pong quite well, but I haven’t had time to play since the new year.
#104775
A
will play
B
have played
C
played
D
play
Michael ______ here to see you and he ______ a note on your desk .
#104622
A
has come ; has left
B
has been ; has left
C
has come ; left
D
has been ; left
—Have you got any trouble finding your way in Shanghai? — Yes，I tried to fid the way to the airport but ______.
#103072
A
has been lost
B
got lost
C
lost
D
get lost.
Land animals are believed ______ from sea animals.
#103259
A
to have developed
B
to have been developed
C
having developed
D
having been developed